I have a bit of a challenge which I'm struggling to get my head around. Have a look at the linked image. It is made up of various overlapping circles. I would like to animate the circles which make up the image - perhaps adding a slow wiggle to each circle just to add some subtle movement to the overall image.

However as you can see quite a complex set of overlaps/ blending modes. Does anyone have any idea as to how to tackle this? It seems like it should be quite simple but it is causing me quite a bit of grief!

That helps. First thing to do: get the position wiggle the way you want it on the three circles you see right away and on the other circles that aren't as obvious.

Walk away from the animation. Go do something else for a couple of hours. Then look at the animation again. If it still looks good, then you've got.... well, Position Wiggle Lock, for lack of a better term.

Then you can start sorting through all the multiple copies of layers, all the track mattes and all the nested comps you'll need to get that look.